Well my original machine that was updated and ACTIVATED first I went back to today, decided I would rather have things fresh as possible, so used the Refresh My PC option or whatever it is. Proceeded to do that then :-
Oh dear Windows 10 has wiped the boot partition, erm, ok boot repair, no boot device present, ok then, considering its showing in the bios, every other repair option, nothing. Now reinstalling Win 8 to do it all again :/
Remember people, we do this first so you don't have to